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Applied Mathematics · 2026 · 1 mark
CBSE 2026 · Central · Set 4 · Q6
If ∫_0^40 dx/(2 x +1)= log k, then the value of k is:
If $\displaystyle \int_0^{40} \frac{\mathrm{dx}}{2 \mathrm{x}+1}=\log \mathrm{k}$, then the value of k is :
Official answer
(B)
$\displaystyle 9$
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CBSE Class 12 Applied Mathematics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.